[SR-Users] Kamailio consuming UDP packets very slowly leading to high RECV - Q

[Daniel-Constantin Mierla]

Well, I can't really say what limits selinux puts in place or other CentOS
specific apps, but I encountered various strange situations where no centos
sysadmin I interacted with could give a solution, even with selinux
disabled, so could be something else...

Coming in my mind: limit on number of new TCP connections per second or
number of forked processes per second - they are the reason for these
"delay" core parameters for mod/child init.

Using Debian stable was always smooth an without such strange limits...

Cheers,
Daniel

On Tue, 28 Aug 2018, 13:45 Alex Balashov, <abalashov at evaristesys.com> wrote:

> On Tue, Aug 28, 2018 at 01:31:04PM +0200, Daniel-Constantin Mierla wrote:
>
> > if you have performance issues just with a very simple config sending
> > a stateless sip reply, then check your system/firewall
> > configuration/limits. Specially on centos, I have seen a lot of
> > restrictive traffic rates limits set by selinux. Also, if you run in a
> > virtual machine, there can be limits enforced by the vm platform.
>
> Really? When did SELinux get into the PPS enforcement business?
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
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